Tanzanite with Side Pearls Ring

A MAGNIFICENT EMERALD AND DIAMOND ‘PALMETTE’ NECKLACE, BY EDMOND CHIN FOR THE HOUSE OF BOGHOSSIAN - Designed as a series of eleven palmette motifs with circular-cut emerald detail, each set to the centre with a rectangular-cut emerald, weighing approximately 12.34 to 3.00 carats, alternating with vari-cut diamond foliate links, extending to the backchain, mounted in gold, 43.0 cm. Auction Estimate $3,625,941 - $4,920,920 USD

Early 20th century cushion diamond and emerald ring, c.1910, the diamond 1.96cts, claw set to a squared calibre emerald frame with triangular detail to the corners, diamond line shoulders, mounted in gold and platinum, gold shank.

AN ART DECO DIAMOND AND EMERALD PENDANT BROOCH Designed as a shield-shaped single and baguette-cut diamond plaque, centering upon a marquise-cut diamond with calibré-cut emerald detail, to the detachable double link pendant hoop of similar design, mounted in platinum, circa 1925